Containers from laminates having a foamed polymer layer
US6911241B2 · kind B2 · utility
2Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2002 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Dec 12, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31797
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A container constructed from a laminate structure that includes a layer of foamed polymer. The layer of foamed polymer replaces the paperboard layer of known laminate structures. A preferred embodiment of the laminate structure is comprised of a layer of foamed polymer, a first layer of low density polyethylene, a second layer of low density polyethylene, a layer of aluminum foil, a tie layer, and a third layer of low density polyethylene. The container has a non-polar homogeneous heat seal that may be created by conventional equipment at a temperature ranging from about 250 degrees Fahrenheit to about 500 degrees Fahrenheit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.